package cn.lili.common.utils;

import org.jasypt.encryption.pbe.PooledPBEStringEncryptor;
import org.jasypt.encryption.pbe.config.SimpleStringPBEConfig;

/**
 * 加密解密
 * 
 * @author Chopper
 */
public class JasyptUtil {

	/**
	 * Jasypt生成加密结果
	 * 
	 * @param password
	 *            配置文件中设定的加密密码 jasypt.encryptor.password
	 * @param value
	 *            待加密值
	 * @return 加密字符串
	 */
	public static String encryptPwd(String password, String value) {
		PooledPBEStringEncryptor encryptor = new PooledPBEStringEncryptor();
		encryptor.setConfig(encryptor(password));
		return encryptor.encrypt(value);
	}

	/**
	 * 解密
	 * 
	 * @param password
	 *            配置文件中设定的加密密码 jasypt.encryptor.password
	 * @param value
	 *            待解密密文
	 * @return 揭秘字符串
	 */
	public static String decryptPwd(String password, String value) {
		PooledPBEStringEncryptor encryptor = new PooledPBEStringEncryptor();
		encryptor.setConfig(encryptor(password));
		encryptor.decrypt(value);
		return encryptor.decrypt(value);
	}

	/**
	 * 加密处理
	 * 
	 * @param password
	 *            密码
	 * @return 加密字符串
	 */
	public static SimpleStringPBEConfig encryptor(String password) {
		SimpleStringPBEConfig config = new SimpleStringPBEConfig();
		config.setPassword(password);
		config.setAlgorithm("PBEWITHHMACSHA512ANDAES_256");
		config.setKeyObtentionIterations("1000");
		config.setPoolSize(1);
		config.setProviderName("SunJCE");
		config.setSaltGeneratorClassName("org.jasypt.salt.RandomSaltGenerator");
		config.setIvGeneratorClassName("org.jasypt.iv.RandomIvGenerator");
		config.setStringOutputType("base64");
		return config;
	}

	public static void main(String[] args) {

		// 加密 若修改了第一个参数加密password记得在配置文件同步修改
		System.out.println(encryptPwd("jasypt.encryptor.password", "123456"));
		// 解密
		System.out.println(decryptPwd("jasypt.encryptor.password",
				"PYVnAYh+j5C3jkMV1d+myj6JzDaUk7pcfTWUaYsvQdEVkuvIVf7Y0mOU9XkffxT8"));
	}
}
